The magician is aided by a small toy car, which never fails to stop at a spectator's selected card.

This handcrafted, solid walnut car measures 2'' 3'' and includes ''headlights'' and a ''spare tire'' on the back. Most importantly, however the rubber tires are made to stop on a dime, and will not slip at all even when used on a glass surface.

Popularized a few years ago by Juan Tamariz on a national television special, this effect is still very popular.